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perf(net): hold wallet scans at connect, in the background and on tab entry

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- Connect gate: after the node starts answering, wallet scans wait until the
  lock state is known and the node knows its tip (or the wallet has fewer
  than 500 transactions), at most 20 s. A node already behind latches the
  sync profile from the connect's getinfo. Meanwhile a list-only pass keeps
  the address list and the cached history up, and the session's first
  balance and per-address balances are read once even while catching up,
  so the wallet shows its last-synced values instead of 0.
- Background: minimized, hidden, or covered without focus (3 s debounce,
  any input cancels) polls only the chain state every 15 s. Wallet scans,
  the mining poll, price, nudges and auto-lock interaction tracking pause;
  auto-lock now fires while minimized. Leaving a held profile marks every
  timer due again.
- Tab entry marks the timers due instead of forcing scans; a stale list or
  a never-loaded history still loads on entry.
- The scan entry points own the hard gates, failed enumerations keep the
  previous lists behind a retry hold, and failed balance calls never
  overwrite known balances with 0.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
DanS
2026-10-09 11:06:34 -05:00
co-authored by Claude Opus 5.5
parent 323143e111
commit f86cc4d6b7
26 changed files with 1083 additions and 159 deletions
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tools/fake_dragonxd/README.md
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@@ -122,6 +122,9 @@ inherits the GUI's environment.
| `FAKE_STUCK_SHUTDOWN` | 0 | the Sep 29 orphan: hold the datadir lock, no listener, ignore SIGTERM, never exit |
| `FAKE_WALLET_NOTES` | (off) | a note wallet: `addr:count:amount,...` shielded notes; enables `z_mergetoaddress` + its operations (dragonxd rules: confirmed unlocked notes, a batch locked on return, merged note next block) |
| `FAKE_MERGE_SECS` | 6 | how long a `z_mergetoaddress` operation runs before it succeeds |
| `FAKE_TIP_UNKNOWN_SECS` | 0 | `longestchain` reads 0 this long after `Done Loading` (a node that hasn't seen an UpdateTip yet) |
| `FAKE_LONGEST_AHEAD` / `FAKE_CATCHUP_SECS` | 0 / 0 | the network tip (`longestchain`, `headers`) is N blocks ahead, for that long after `Done Loading` (0 = for good) |
| `FAKE_TXCOUNT` | 42 | `getwalletinfo` `txcount` (the GUI's connect gate waits for the tip on wallets of 500+) |
| `FAKE_METHODS_ALL` | 0 | `1` = one `call m=<method> p=<params>` event per request (the GUI's RPC cadence; the `methods` lines keep only the top 10 counts) |
| `FAKE_HEIGHT`, `FAKE_REBUILD_TOTAL`, `FAKE_NOTES`, `FAKE_VERSION` | 3327145, 62583, 13632, 1030050 | cosmetic numbers |